Hog 2 & Luminex Boxes

We have recently been using our Hog 2's with Luminex Node 8's for Network DMX Distribution on shows, for much if the time all is fine, however we have one serious problem. Glitches! having a whole universe drop to zero vales for a fraction of a second (probably only a frame of data) then return to their previous values.

Having pretty much eradicated everything except the Luminex Gear and Hog 2's (have had the same problem with 3 of them now) do you know of anything which would cause the hog to interrupt the data stream (except saving) and be the cause of these glitches. Could this be a Hog problem?

The guys at Luminex have never heard of the problem and as far as I know have failed to replicate it.

Any Thoughts?
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